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Kind of difficult to give recommendations on where to start for resoldering, but my first hunch would be cold solder joints somewhere. I have a Kyria from splitkb that I assembled myself that had spotty LEDs on one half which turned out to be a cold joint on one of the surface mount underglow LEDs. Also had no key presses registered on a row that turned out to be a cold joint at the MCU.

As for general troubleshooting recommendations, if you can get a board schematic that would be immensely beneficial for your efforts as it would show how and to what pins of your MCU everything is connected. With that you can try to identify where the fault might be occurring (e.g. LEDs die after LED 5 in the chain) and focus your efforts before/after that area.

Failing the board schematic, you may be able to just visually see where the traces connect back to on the PCB, or you could probe it out using continuity mode on a multimeter and reverse engineer the connections.

Another thing that may aid in diagnosing where the issue lies with the double key presses is figuring out how the key matrix is laid out. For example if you're receiving double presses on only some keys in a single row or column, the issue lies in either that row/column or the MCU pin they connect back to. Again, the board schematic would be really helpful in this regard.

Best of luck!

Check out Mealie

Crashing and burning (in a non-production environment) is an excellent motivator to develop necessary skills; being unafraid to break things and fix them when they inevitably break helps you get a deeper understanding of how the systems work, for what it's worth.

Trying to get started with reverse engineering and binary exploitation by following this guy. My brain hurts, but in a good way!

I think this may more for acute vertigo, but have you tried the Epley maneuver?

Amazing work!

This appears to be a variation of the "standwich." Please see the attached for an example.

I loved that book growing up and was so excited when the movie was coming out (on my birthday!)

To this day, that movie is the only one I legitimately walked out of. It was such a terrible adaptation.

Running an RKE cluster as VMs on my ceph+proxmox cluster. Using Rook and external ceph as my storage backend and loving it. I haven't fully migrated all of my services, but thus far it's working well enough for me!

Gorgeous cat...but where are the peppers 🤣

I actually, legitimately, laughed out loud at this one 🤣

Oh yeah...the sounds were something else lol. The technicians gave me earplugs for mine. It is quite a loud procedure strangely enough. The one benefit was that I was able to request the imagery they took on a disc afterwards and then I was able to 3d print my brain from the imagery!